Water heater



.- July 5, 1927.

0. LE R. LEWIS WATER HEATER Fileq Npv. 9.1925

I BY l Clay/66L 1 g 33. n w 1 l 0 7 M Z r ME T; v

Patented July 5, 1927. i

* UNITED? mes-As:

lessees PATENT ose'ics.

CLAUDE LER Ewrs, or t/ref rs, nE RAsKA, A'ssienosos enemie To G. w.sTREET ANDONE-THIRD To JOHN WALKER, OF OMAHALNEBRASKA.

WATER HEATER.

Application filed November 9, 1925. Serial No. 67,860.

This invention, relates to a wate heater designed primarily for use inconnection with sterilizing 'and rinsing machines of that type asdisclosed in my application filed 'Jui1e 9, 1925; Serial Number 35,949,but it is to he underst'oodthat a water heater in accordance with thisinvention can he employed in any connection for which it' isfoun'depplicable, andthe invention has for.

its object to provide water heater, in a manner as hereinafter setforth, for produc hag highly heated water for use in steriliz in'g creamand milk censend ate temperature of from 280 to 350 degrees-{which -willact, more satisfectorily than steam when sterilizing at thesametemperature.

A further object of the invention is to provide, in a manner ashereinafter set forth, awater heater including a water tank surroundedby a water "condueting coil and with the heat applied directly on thecoil and the tank so all the heat is utilized on all the water in boththe coil and the tank whereby the water is heated to the desiredtemperature. i

With the foregoingnnd other objects in view, the invention consists ofthe novel construction, combination and arrangement of parts, ashereinafter inor'e specifically described 'and illustrated in theaccompanying drawings, wherein is shown an embodiment of theinvention','hut it is to be understood that changes, variations andmodifications can be resorted to which come Within the scope of theclaims hereunto appended.

In the drawings wherein like reference characters denote correspondingparts throughout the several views c Figure 1 is an elevation of a waterheater in accordance with this invention.

Figure 2 is an elevationwith one of the sections "of the ticket thereofremoved.

Figure 3 isa vertical sectional view of the i heater.

Figure 4 is a top lan view thereof.

Referring tothe drewings in detail, the heater comprises a water tankconsisting of "a tubular body portion 21' of thedesired height anddialneter having attached to its up er and ahead 22 share its lower end*a-toaomeap 23; *The lower portion of the cap 22 is provided With alaterally exfor the water tank.

tending annular flange24 providing a sup port for a sectional enclosingshell-or jacket The jacket is formed of two semi eirculer' sections 25,26, having their end edges abutting each other. Each of said sectionshas each of its end edges termed with a plurality oflatera'lly extendingspaced a'perture'd lugs 27. The lugs oi the section 25 abut againstthe'lugs of the section 26, andeiitending through theebutting lugs arehold-fast devices 28 for de techably connecting the sections together.The section 25 as well as the section 26 has formed integral with thetop thereof a segmental plate 29 which extends inwardly. The'pla't'es 29of said sections are oppositely disposed 'wi'th r'espectt'o each otherand each has its inner edge formed with a semi-circular cutout portion30. When the sections 25 and 26 are inebutting engage ment the cutoutportions 30 of the plates 29 provide a circular opening through whichextends upwardly the top or head cap 22. lVhenthe sections 25 and 26 arein abutting engagement, the jacket is supported from the flange 24 asthe plates 29 extend onto said flange 24: and this arrangement isobtained in View of the fact that the opening formed by thec'utout'portions 30 is of less dianr eter than the out'endia'meter ofthe Henge 24. Formed integral with each of the plates 29 as'well asextending upwardly therefrom,

is a semi-circular flange 31 having its inner face forming acontinuation'of the wall of the cutout portion 30. The fl'ahgesfil surround the head or top cap 22. Each of the plates 29 is furthermoreprovided with a series of spaced vent openings 32 The section 25 of thejacket,.near its bottom edge, is provided with an opening 33 for apurpose to he presently referred to. The caps 22 and 23 have threadedengagement with i the body portion '21. I

Eacl' of the seetions of the shell or acket is linedwith a heatretaining means, such as asbestos, as at 32. I

A valve controlled discherge element provided for the water tank andsuch elemeans adapted t0loe coupled with the nozzle of arinsingflepparetus, or such element can the employed for supplying hotWater for any purpose desired. The dis-- charge element as shownincludes a pipe prising a pair o-l. pipe branches 70. 71 con branch orcoupling nipple 43, which is attached to a cutolil ralre -11- operatedthrough the medium of a hand lever 45. Con'nnunieating; with the cntotlvalve il-l. is a pipe branch 4:6, having attached thereto a T-coupling47. which is secured to the head cap and opens into the water tank.

Connected to the T-coupling l? is a. pipe branch 4-3 which opens into amanually operated cont-rolling ralve t l. Leading from the valve all isa pipe branch 45 cnnet-ted to a T-coupling l6, from which cxtends aconducting pipe 57. Connected to the T-couplinp 4:6 a manually operatedcontrolling valve 58, having leading therefrom a pipe branch ea, whichis connected to a T-coupliin; (it) having a water supply line ($1atttu-hed thereto. The construction just. re'lerri-ml to provides meanswhich permits (it the drawing oil' of either hot or cold water or both.\Vhen the valve 4:1 is closed and the valve 58 opened, cold water can heconducted oil through pipe 57. \Vhen the valve ill. is open and thevalve 58 closed, hot water can be conducted oil through pipe 57. Whenboth valves 4A and 58 are open, hot and cold water can be conducted oilthrough pipe 57.

Surrounding the body portion 2t oi the water tank, as well as spacedirom the sections it; and 2(3 of: the jacket. is a heating coil -48.having its upper end communicating with the water tank below the capthrough the medium of a nipple ltl. llepending 'l'rom the up 23) as wellas commuuieating therewith is an. elhow tit) connected with an invertedT coupling ill, by a pipe branch 52. Attached to the coupling til andextending through the opening 3;) is a nipple 53. which is secured to adrain valve Fri. .\ttached to the lower end oi the coil 13 isailepcndingr elbow. which is connected by a vertically disposed hranchpipe 55. with the vertical lea Ziti oi the coupling' iii.

A valved pipe line (it is employed 'l'or supplying water to the. tank2'1 and the said line (it includes a nipple (32 which leads from theT-coupling tit) and is connected to a check valve 6 l lxtended from thecheck valve 62, is a pipe branch til which opens into a, de 'iendinpgelhow extending tlirough the head cap and has secured therewith avertically disposed water inlet pipe 68 which extends to a point inproximit; to the bottom cap of the water tank. The check valve 63 is toprevent water being forced hack into the supply line when pressure inthe supply line has been reduced. causing the water in the tank tochange to steam due to reduced pressure.

lonnected to the head cap 22 of the water tank. as well as communicatingwith the interior of the latter, is a safety valve 69 haw ing leadingtherefrom a discharge line coinnected together by an elbow 72.

A heater element. such as a gas burner as indicated at St) is positionedbelow the water tank as well as the jacket and is eniploycd tor heatingthe water. Any suitable means an be utilized for the purpose of heatingthe water in the coil and in the tank. The means-shown is illustrated byway of example.

As is well known at atmospheric pressure ater boils at: 212 l alnz, butunder the prcssure employed, which is the pressure of city water pipes,the temluratnrc to which the water is heated by a device, in acrordaru-cwith this lllltlillltil]. varies from 280 to 350 degrees, depending uponthe pressure ol the city water in the pipes. so when lit-din; the waterheater in ciiuinccliou with a sterilizing and rinsing apparatus waterat. a temperature o'l from 280 to 550 degrees is employerl, which willdo the work better than steam at the same temperature.

As heretofore set Forth the coil is built, around the water tank and theheat is up plied not only directly on the coil but also on the tank,therefore. all the heat is utilized on all the water in both the coiland the tank, and furthcrlnore as the shell or jacket is lined withasbestos the heat retained within the shell.

l t thought that the many ad mutagres of a water heater, in. accordam'ewith this in- '\ention. can be readily understom'l. and although thepreferred embodiment ol the inventiou is as illustrated and described,yet it is to he nru'lerstood that changes in the dctails of umstructioncan he had which will 'l'all within the scope ol the invention asclaimed.

hat I claim is:---

1. la a water heater .lor the purpose set forth, a. water tank adaptedto ho arranged over a heating element and having a peripheral support?in PI'UXlIIlilZV to its upper end. a water heating coil surroinulinn thetank and having its upper and opening: into the tank below and inproximity to said support. said. coil having its lower end dependinghelow the tank and opening); into the hottum oil the latter centrallythereof. and a suspended jacket mic-losing and spaced from said coil.said jacket havingan open lower end positioned below the bottom of thetank. and aid acket having an inwardly extending upper end abuttingagainst and surrounding the upper portion of the tank below the top ofthe latter. and further engaging said peripheral support. whereliiytliejacket will he suspended from said support; and the tank extended abovethe upper end of the jacket.

2. In a water heater constructed in accordance with claim 1, the saidinwardly exopenings for the space between the body portending upperendof said jacket disposed at right angles with respect to the bodyportion of the jacket and formed with vent tion of the acket and thetank.

3. Awvater heater constructed in accordance with claim 1, a water outletmeans arranged axially of the upper end of the tank and exteriorly ofthe jacket, and a water supply means arranged exteriorly of the jacket,extending through the upper end of the tank eccentrically thereof andterminating at a point in proximity to the bottom of the tank.

4:. A water heater constructed in accordance with claim 1, the saidinwardly extending upper end of said jacket disposed at right angleswith respect to the body portion of the jacket and provided with ventopenings for the space betweenthe body portion of the jacket and thetank, a water outlet means arranged axially of the upper end of the tankand exteriorly of the jacket,

and a water supply means arranged exteriorly of the jacket, extendingthrough the up-.'

per end of the tank eccentrically thereof and terminating at a point inproximity to the bottom of the tank.

5. In a water heater for the purpose set forth a water tank adapted tobe arranged over a heating element and formed with a peripheral supportin proximity to its upper end, a water heating coil surrounding the tankand having its upper end opening into the tank below and'in proximity tosaid support, said coil having its lower end depending below the bottomof the tank and opening into said bottom centrally thereof, a suspendedjacket surrounding and spaced from said coil, depending below the bottomof the tank and having its lower end open, said jacket formed of twosections each having its upper end provided with an inwardly extendingapertured plate seating on said support, each of said plates having itsupper end formed with a cut-out portion, said cutout portions alining to.provide an opening corresponding to the shape of and for the extensionof the tank above said plates, the edges of said cut-away portionsabutting against the tank, and means for clamping the sections together.

6. In a water heater forthe purpose set forth a water tank adapted to bepositioned over a heating element therefor and including a body portion,a head cap for the latter provided with a flange at its lower end and abottom cap for the body portion, a water heating coil arranged betweensaid caps and having its convolutions completely sur rounding said bodyportion, said coil hav ing its upper end opening into said body jacketmounted on and suspended by the flange of the head cap, surrounding andspaced from said coil and depending below said bottom cap, said head capextended above the top of the jacket, said jacket including a closedupper end provided with vent openings for the space between the tank andthe jacket.

7. A water heater constructed in accordance with claim 6, a cold watersupply line arranged exteriorly ofthejacket, secured to and extendingthrough the top of the head cap eccentrically thereof and depending to.a point in proximity to said bottom cap, and a valved water outlet linearranged exteriorly of the jacket and connected to the top of theheadcap axially thereof.

8. A water heater comprising a water tank adapted to be arranged over aheating elebottom formed with a laterally ext-ending annular flange toprovide a peripheral support, a water heating coil surrounding said bodyportion, opening thereinto near the upper end thereof and furtheropening into the bottom cap axially thereof, and a cylindrical jacket ofgreater diameter and length than the diameter and length of the tank,said jacket including a top surrounding the head cap above and engagingwith and suspended by said support and further having its top formedwith an opening for the passage of the head cap, and said jacket furtherhaving its top provided with vent openings for the space formed betweenthe body portion of the jacket and the'body portion of the tank.

9. A water heater constructed in accord ance with claim 8, said head caphaving its top provided with an axially disposed opening and aneccentrically arranged opening, a water outlet means secured in saidaxially arranged opening, and a water supply means extending throughsaid eccentrically disposed opening to a point in proximity to saidbottom cap.

In testimony whereof, I aflix my signature

